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Kim, Kim, and Chung: Effectiveness of Multifocal Soft Contact Lens for Presbyopia
Original Article

J Korean Ophthalmol Soc 2008;49(5):727-731.

Published online: 7 September 2008

DOI: https://doi.org/10.3341/jkos.2008.49.5.727

Effectiveness of Multifocal Soft Contact Lens for Presbyopia

Hyun Kyung Kim, M.D.1, Hyo Myung Kim, M.D.2, Sung Kun Chung, M.D.1

1Department of Ophthalmology, St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea

2Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea

Address reprint requests to Sung Kun Chung, M.D. Department of Ophthalmology, The Catholic University of Korea, St. Mary's Hospital #62 Yeouido-dong, Yeongdeungpo-gu, Seoul 150-713, Korea Tel: 82-2-3779-1243, Fax: 82-2-761-6869, E-mail: eyedoc@catholic.ac.kr

Received 15 May 2007       Accepted 12 December 2007

Copyright © 2008 Korean Ophthalmological Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To assess the effect of multifocal soft contact lenses on the correction of visual acuity in patients with presbyopia.

Methods

Forty-four patients ranging from 45 to 60 years of age visited the Department of Ophthalmology at St. Mary's Hospital and the Department of Ophthalmology at Korea University's Anam Hospital between August 2005 and February 2006. The visual acuity of patients who used Morning QI-plus (multifocal soft contact lenses, Interojo, Republic of Korea) was analyzed at, before, and immediately after correction, then one week and one month after correction. Symptoms that developed after Morning QI-plus application, slit lamp microscopy results, and patient satisfaction were quantified into scores and compared.

Results

Far and near visual acuity before correction were 0.240±0.432 and 0.415±0.227, respectively. They were 0.025±0.048 and 0.118±0.094 immediately after correction was initiated, 0.019±0.046 and 0.102±0.055 after one week, and 0.015±0.042and 0.111±0.086 after one month. Both far and near visual acuity showed statistically significant improvement after correction (p<0.05).

Conclusions

After correction, visual acuity improved by more than 2 Snellen lines in 84.1% of patients. We conclude that multifocal soft contact lenses are effective for presbyopia.

Keywords: Multifocal soft contact lens, Presbyopia

References

1. Kim MG, Kim TJ, Park YG, et al. Contact lens: Principles and practice. Lee YS, editor. Presbyopic Contact Lens Fitting. 1st ed.Seoul: Naewae haksool;2007. v. l. chap. 14.
2. Rakow PL. Presbyopic correction with contact lenses. Ophthalmol Clin N Am. 2003; 16:365–81.
crossref
3. Benoit DP. Multifocal contact lens update. Contact Lens Spectrum. 2001; 16:26–31.
4. Jin YH. Refraction and Prescription. revised ed.Ulsan: UUP;1996. p. 211–30.
5. Daniels K. Contact Lens Alternatives for Presbyopia. Agarwar A, editor. Presbyopia. 1st ed.NJ: Slack;2002. v. l. chap. 7.

Figure 1.
Multifocal soft contact lens (Morning QI-plus) design. A = optical zone; B = base curve; C = central thickness; D = diameter.
jkos-49-727f1.tif
Table 1.
Log MAR Viual acuity before and after correction with multifocal soft contact lens
  Before Correction After Correction
immediately 1 week 1 month
Distant visual acuity 0.240±0.432 0.025±0.048 0.019±0.046 0.015±0.042
    (p=0.002) (p=0.002) (p=0.001)
Near visual acuity 0.415±0.227 0.118±0.094 0.102±0.055 0.111±0.086
    (p=0.000) (p=0.000) (p=0.000)
Table 2.
Patient symptom score
  Patient symptom score
-2 -1 0 1 2
Distant Visual Acuity 0 11 8 21 4
Near Visual Acuity 0 6 7 28 3
Night Visual Acuity 0 8 23 11 1
Comfort 1 6 13 23 1
Easy to handle 2 8 21 9 2

patient symptom score −2: fully dissatisfied; patient symptom score −1: dissatisfied; patient symptom score 0: moderate; patient symptom score 1: satisfied; patient symptom score 2: fully satisfied.

Table 3.
Visual acuity correction score (No (%))
  Final visual acuity correction score
-1 0 1 2
1 month after correction 1 (2.2) 6 (13.6) 13 (29.5) 24 (54.5)

Score 2: improves visual acuity 2 lines or more; Score 1: improvers visual acuity less than 2 lines; Score 0: no changes before and after correction; Score −1: decreased visual acuity after correction.

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